GM Service Manual Online
For 1990-2009 cars only

Caution: 

   • Never drain or store fuel in an open container due to the possibility of fire or explosion.
   • When draining the fuel tank, slowly insert the hand operated pump device in the fuel tank. Do Not force the hand operated pump device in the fuel tank. Forcing the pump device can cause the fuel pump to dislocate from the fuel sender assembly.

  1. Remove the fuel filler cap.
  2. Use a hand operated pump device in order to drain as much fuel through the fuel filler pipe as possible.
  3. Reinstall the fuel filler cap.